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Thu, 30 Jul 2026 00:18:22 -0700 (PDT) MIME-Version: 1.0 From: "H.J. Lu" Date: Thu, 30 Jul 2026 15:17:45 +0800 X-Gm-Features: AUfX_myDWStjedvREzBANNBvrbTFBq5GNL63Q3yA0lcfABNhXCFmLwTtJqTl1PQ Message-ID: Subject: [PATCH] ld: Don't define section symbols for excluded sections To: Binutils , Nick Clifton , Alan Modra , Jan Beulich , "Maciej W. Rozycki" X-Spam-Status: No, score=-3008.8 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, FREEMAIL_FROM, GIT_PATCH_0, RCVD_IN_DNSWL_NONE, SPF_HELO_NONE, SPF_PASS, TXREP shortcircuit=no autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on sourceware.org X-BeenThere: binutils@sourceware.org X-Mailman-Version: 2.1.30 Precedence: list List-Id: Binutils mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: binutils-bounces~patchwork=sourceware.org@sourceware.org When the SEC_EXCLUDE bit is set on a section, the contents of the section are excluded by the linker for non-relocatable output. Define __start, __stop, .startof. and .sizeof. symbols for relocatable link or if the SEC_EXCLUDE bit on the section is cleared. PR ld/34448 * ldlang.c (lang_init_start_stop): Call lang_define_start_stop for relocatable link or if the SEC_EXCLUDE bit on the section is cleared. From e939d1e0426535a864c75e56e93f1301d38f4341 Mon Sep 17 00:00:00 2001 From: "H.J. Lu" Date: Thu, 30 Jul 2026 15:10:36 +0800 Subject: [PATCH] ld: Don't define section symbols for excluded sections When the SEC_EXCLUDE bit is set on a section, the contents of the section are excluded by the linker for non-relocatable output. Define __start, __stop, .startof. and .sizeof. symbols for relocatable link or if the SEC_EXCLUDE bit on the section is cleared. PR ld/34448 * ldlang.c (lang_init_start_stop): Call lang_define_start_stop for relocatable link or if the SEC_EXCLUDE bit on the section is cleared. Signed-off-by: H.J. Lu --- ld/ldlang.c | 39 +++++++++++++++++++++------------------ 1 file changed, 21 insertions(+), 18 deletions(-) diff --git a/ld/ldlang.c b/ld/ldlang.c index 354fa635ba8..7dc331c04cd 100644 --- a/ld/ldlang.c +++ b/ld/ldlang.c @@ -7283,28 +7283,31 @@ lang_init_start_stop (void) for (abfd = link_info.input_bfds; abfd != NULL; abfd = abfd->link.next) for (s = abfd->sections; s != NULL; s = s->next) - { - const char *ps; - const char *secname = s->name; + if (bfd_link_relocatable (&link_info) + || (s->flags & SEC_EXCLUDE) == 0) + { + const char *ps; + const char *secname = s->name; - for (ps = secname; *ps != '\0'; ps++) - if (!ISALNUM ((unsigned char) *ps) && *ps != '_') - break; - if (*ps == '\0') - { - char *symbol = (char *) xmalloc (10 + strlen (secname)); + for (ps = secname; *ps != '\0'; ps++) + if (!ISALNUM ((unsigned char) *ps) && *ps != '_') + break; + if (*ps == '\0') + { + char *symbol = (char *) xmalloc (10 + strlen (secname)); - symbol[0] = leading_char; - sprintf (symbol + (leading_char != 0), "__start_%s", secname); - lang_define_start_stop (symbol, s); + symbol[0] = leading_char; + sprintf (symbol + (leading_char != 0), "__start_%s", + secname); + lang_define_start_stop (symbol, s); - symbol[1] = leading_char; - memcpy (symbol + 1 + (leading_char != 0), "__stop", 6); - lang_define_start_stop (symbol + 1, s); + symbol[1] = leading_char; + memcpy (symbol + 1 + (leading_char != 0), "__stop", 6); + lang_define_start_stop (symbol + 1, s); - free (symbol); - } - } + free (symbol); + } + } } /* Iterate over start_stop_syms. */ -- 2.55.0